PSI - Issue 33

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 33 (2021) 279–286

© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the IGF ExCo Abstract Fracture state of a material can be established utilizing a fracture locus as the fracture locus provides equivalent failure strain of a material for different state of stress conditions. A fracture criterion with a small number of calibration parameters is essential in order to identify the fracture locus with a minimum number of experiments. Therefore, in this study, two fracture criteria involving one calibration parameter, i.e., the energy balance (KAEB) concept and the maximum shear stress (MSS) criterion, are implemented to obtain the fracture loci of various metallic materials. Fracture loci of Al 2024-T351 alloy, Al 6061-T6 alloy ASTM A572 Gr. 50 steel, and AISI 1045 steel are predicted, and superiorities and shortcomings of the two fracture criteria are compared and discussed. Results of the current study suggest the use of KAEB concept is more versatile than the MSS criterion as it can capture the non-symmetry as well as both Lode angle and stress triaxiality dominated cases in the fracture locus. © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo Keywords: Fracture; Ductility; Plasticity; Steel; Aluminum 1. Introduction Ductile fracture modeling is critical for a wide range of engineering applications, ranging from large lightweight structures to tiny electronic components (Baltic et al., 2020). The main goal in ductile fracture modeling is to generate a fracture locus as the fracture locus provides equivalent failure strain of a material for different state of h y This is an open access article under ons.org/licenses/b IGF26 - 26th International Conference on Fracture and Structural Integrity Prediction of Ductile Fracture Loci of Aluminum Alloys and Structural Steels Using KAEB Concept and MSS Criterion Fuzuli Ağrı Akçay* İ stanbul Teknik Üniversitesi Gemi İ n ş aat  ve Deniz Bilimleri Fakültesi, Maslak, İ stanbul 34469, Turkey.

* Corresponding author E-mail address: akcayfu@umich.edu

2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo

2452-3216 © 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the IGF ExCo 10.1016/j.prostr.2021.10.034